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10 questions
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100 + 100 = .........
100
200
300
200 + 100 = ..........
100
200
300
200 + 200 = ........
300
500
400
400 + 300 = .......
700
500
800
300 + 300 = .....
500
600
400
250 + 250 = ......
450
500
550
500 + 60 = .....
560
500
600
700 + 20 = .....
780
720
700
800 + 10 = .....
800
920
810
900 + 100 = .......
1000
800
30
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